JPH04502546A - Conductor winding device for large rotating electric machines - Google Patents
Conductor winding device for large rotating electric machinesInfo
- Publication number
- JPH04502546A JPH04502546A JP1507455A JP50745589A JPH04502546A JP H04502546 A JPH04502546 A JP H04502546A JP 1507455 A JP1507455 A JP 1507455A JP 50745589 A JP50745589 A JP 50745589A JP H04502546 A JPH04502546 A JP H04502546A
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- JP
- Japan
- Prior art keywords
- semiconductor layer
- layer
- conductor
- slot
- filler
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
Abstract
(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 大形回転電機のための導体巻線装置 この発明は、約２０ＭＶＡ特に約５０ＭＶＡ以上の電気入力又は出力を有する大 形回転電機特にタービン発電機のための導体巻線装置に関し、この導体巻線は部 分的にスロット中に挿入された巻線バーから成る。[Detailed description of the invention] Conductor winding device for large rotating electric machines The present invention provides a large Regarding a conductor winding device for a rotating electrical machine, especially a turbine generator, this conductor winding is It consists of a wire-wound bar that is partially inserted into a slot.
通常の巻線バーの構造の詳細な説明は例えばドイツ連邦共和国特許第３１０２８ ４９号明細書に記載されている。それによれば巻線バーは導電性の一般には銅の 一つ又は複数の棒及び棒を囲む絶縁層から成り、これらの棒は全体として又は部 分的に冷却媒体を導（ために中空とすることができる。この絶縁層は一般に導体 装置が例えば雲母のような強固な絶縁材料を含み含浸可能なテープにより巻かれ ることにより製造され、テープ層は例えば合成樹脂のような液状の硬化可能な充 填剤を含浸され、最後に充填剤が硬化される。含浸された絶縁材料は硬化前には 全く形状安定性を有しないので、硬化は巻線バーを入れられたプレス金型の中で 行われる。A detailed description of the structure of a typical wire-wound bar can be found, for example, in German Patent No. 31 028 It is described in the specification of No. 49. According to this, the wire-wound bar is made of conductive material, generally copper. Consisting of one or more rods and an insulating layer surrounding the rods, the rods may be used in whole or in part. It can be hollow to partially conduct the cooling medium. This insulating layer is generally a conductor. The device is wrapped with an impregnable tape containing a strong insulating material, such as mica. The tape layer is made of a liquid hardenable filler such as synthetic resin. The filler is impregnated and finally the filler is cured. The impregnated insulation material is Since it has no shape stability, hardening is done in a press mold containing a wire-wound bar. It will be done.
大形回転電機のための導体巻線装置の組立は従来技術によれば、巻線バーが支持 体に加工されたスロット中に挿入され、そしてスロットが適当な装置により閉鎖 され、個々の巻線バーが導体巻線を形成するために電気的に相互に接続されるよ うに行われる。According to the prior art, when assembling a conductor winding device for a large rotating electric machine, the winding bar is supported. inserted into a slot machined in the body, and the slot is closed by a suitable device and the individual winding bars are electrically connected together to form a conductor winding. It is done in a sea urchin.
大形回転電機の駆動の際に巻線バーは大きい力にさらされる。静止した巻線バー の場合にはまず第１に磁力が問題となり、回転する巻線バーの場合には遠心力の 追加が重要である。スロット中に巻線バーを固定するための方法は例えばドイツ 連邦共和国特許出願公開筒３［１１６９９６号公報に記載されている６巻線バー を遊びなくスロット中に固定するために、十分に負荷能力のあるスロット閉鎖装 置のほかにばね弾性要素がスロット中に組み込まれる。When driving a large rotating electrical machine, the winding bar is exposed to large forces. stationary winding bar In this case, the first problem is magnetic force, and in the case of a rotating wire-wound bar, the problem is centrifugal force. Additions are important. The method for fixing the winding bar in the slot is for example German 6-winding bar described in Federal Republic of Patent Application Publication No. 3 [116996] Slot closure with sufficient load capacity to secure the device in the slot without play. In addition to the position, a spring elastic element is incorporated into the slot.
大形回転電機のための巻線バーの絶縁の特に経済的な製造方法として、類似の形 で既に小形変圧器などの製造のために知られているいわゆる全含浸法が近年開発 された。全含浸法の工程ではまず事前に充填剤を含浸せずに導体巻線を備えた支 持体が完全に組み立てられ、特に巻線バーは含浸されていない絶縁材料外被によ り囲まれ、続いて全体として含浸される。巻線バーは組み込み完了状態で初めて 充填剤含浸を受けるので、組み込み前の含浸工程における形に忠実な絶縁層の高 額な製作費が不要である。Similar shapes as a particularly economical manufacturing method of winding bar insulation for large rotating electrical machines The so-called total impregnation method, already known for the production of small transformers etc., has been developed in recent years. It was done. In the full impregnation process, the support with conductor windings is first prepared without prior impregnation with filler. The carrier is fully assembled, especially the winding bar with an unimpregnated insulating material jacket. surrounded and then impregnated as a whole. The winding bar is installed only after it has been assembled. Since it undergoes filler impregnation, the height of the insulating layer true to shape during the impregnation process before assembly is No large production costs are required.
全含浸法はそれに伴う費用が少なくない（特に含浸しようとする装置のための含 浸槽を収容する数メートルの寸法を有する容器が必要である）が、多くの長所を 有する。即ち充填剤が十分に流動性でさえあれば、充填剤は含浸の際に装置中に 残っているすべての間隙を充填し、従って硬化が行われた後に単一の緻密な固体 を形成することができる。それにより優れた電気的特性特に絶縁体の高い品質が 保証される。更に硬化された充填剤はスロット中での巻線バーの固定のために寄 与するので、スロット閉鎖装置に対する要求を場合によってはかなり低減するこ とができる。また場合によってはスロット中の巻線バーの位置を固定する補助的 なばね要素を省略できるので、電気出力容量に対する要求が与えられた場合に従 来の機械に比べて小型にすることが可能である。The total impregnation method has considerable costs associated with it (especially the impregnating equipment for the equipment to be impregnated). (requires a container with dimensions of several meters to accommodate the soaking bath), but it has many advantages. have That is, if the filler is sufficiently fluid, it will not flow into the equipment during impregnation. Fills all remaining gaps and thus forms a single dense solid after curing has taken place can be formed. This results in excellent electrical properties, especially high quality insulation. Guaranteed. Furthermore, the hardened filler is used to secure the winding bar in the slot. therefore, the demands on the slot closing device can be reduced considerably, in some cases. I can do it. In some cases, it may also be used as an auxiliary device to fix the position of the winding bar in the slot. As the spring element can be omitted, the requirement for electrical output capacity can be It is possible to make the machine smaller than conventional machines.
導体巻線装置の含浸のために通常は、装置の運転温度より明らかに高い温度で硬 化する充填剤特に合成樹脂が用いられる。運転温度は特に水冷式大形回転電機の 場合に１００”Ｃ前後の範囲にあるので、一般に硬化温度が約１００”Ｃないし 約２００＠Ｃ望ましくは約１５０’Ｃ前後の範囲にある充填剤が用いられる。For impregnation of conductor winding equipment, hardening is normally performed at temperatures significantly higher than the operating temperature of the equipment. fillers, especially synthetic resins, are used. The operating temperature is particularly high for water-cooled large rotating electric machines. Generally, the curing temperature is around 100"C or around 100"C. Fillers in the range of about 200°C, preferably around 150'C, are used.
硬化のために含浸された装置を硬化温度に相当するか又は僅かにそれより高い温 度に加熱すべきである。一般的に約１５０°Ｃの温度への加熱は事情によっては 支持体の熱に基づく顕著な形状変化を招くおそれがあり、このことは特に含浸の 硬化完了後の冷却の際に問題となるおそれがある。冷却の際には成る程度の収縮 が起こり支持体中に引張応力が発生する。この引張応力は硬化された充填剤の脆 性に応じて間隙発生を招くおそれがある。一方ではこの種の間隙により強度が著 しく損なわれるおそれがあり、他方では間隙中に運転の際にグロー放電が発生す るおそれがある。グロー放電は絶縁物の品質を損なうばかりでなく時間の経過と 共に絶縁層の損傷を招くおそれがある。For curing, the impregnated equipment is heated to a temperature corresponding to or slightly above the curing temperature. It should be heated to a certain degree. Generally, heating to a temperature of about 150°C depends on the circumstances. This can lead to significant heat-induced changes in the shape of the support, which is especially true during impregnation. This may cause problems during cooling after curing is complete. Some degree of shrinkage occurs during cooling. occurs and tensile stress is generated in the support. This tensile stress is due to the brittleness of the hardened filler. Depending on the nature of the product, there is a risk of creating gaps. On the one hand, this type of gap significantly increases the strength. On the other hand, glow discharges may occur during operation during the gap. There is a risk of Glow discharge not only impairs the quality of the insulation but also deteriorates over time. Both may cause damage to the insulating layer.
従ってこの発明の課題は、コントロールできないような亀裂の形成が防止され、 それによりグロー放電の発生がそれに由来する損傷と共に防止されるような導体 巻線装置を提供することにある。Therefore, it is an object of the invention to prevent uncontrolled crack formation, conductors such that the occurrence of glow discharges together with the damage resulting therefrom is prevented; An object of the present invention is to provide a winding device.
この課題は、導体巻線を備える支持体から成り、その際導体巻線が部分的にスロ ット中に挿入された導体バーから成り、各導体バーが絶縁層により囲まれた導体 装置を有するような、大形回転電機のための充填剤を含浸可能な導体巻線装置に おいて、この発明に基づき、各巻線バーが第１の半導体層により覆われ、各巻線 バーと各スロット壁との間には、第１の半導体層と電気的に接続された少なくと も一つの第２の半導体層及び分離層が設けられ、その際分離層により第１の半導 体層と少なくとも一つの第２の半導体層との間の充填剤に基づ（付着が低減され ることにより解決される。This task consists of a support with conductor windings, where the conductor windings are partially slotted. A conductor consisting of conductor bars inserted into a conductor, each conductor bar being surrounded by an insulating layer. Conductor winding equipment that can be impregnated with filler for large rotating electric machines, such as those that have According to the invention, each winding bar is covered with a first semiconductor layer, and each winding bar is covered with a first semiconductor layer. Between the bar and each slot wall there is at least one layer electrically connected to the first semiconductor layer. a second semiconductor layer and a separation layer, wherein the separation layer separates the first semiconductor layer from the first semiconductor layer; Based on the filler between the body layer and the at least one second semiconductor layer (adhesion is reduced) This is solved by
この発明によれば、硬化された充填剤中の熱膨張及び収縮過程に起因する亀裂形 成があらかじめ定められた領域中に集中させられ、その際この領域ではグロー放 電を誘発する過度な電界強度が生じるおそれがないということが保証される。According to the invention, crack formation due to thermal expansion and contraction processes in the cured filler The glow is concentrated in a predetermined area, and the glow is emitted in this area. It is ensured that there is no risk of excessive electric field strengths inducing electricity.
この領域は巻線バーを収容する支持体のスロット中で硬化された充填剤が分離層 と接触する領域により与えられる。充填剤は分離層と全く又は僅かしか付着しな いので、材料の損傷を起こすことなく各接触個所に間隙が発生できる。充填剤と 分離層との接触域が電気的に相互に接続された二つの半導電性層の間に存在する ので、接触域はほぼ一定の電位が存在する領域である。従ってグロー放電はそこ では発生せず、その結果接触域における亀裂による充填剤の絶縁品質の低下がほ ぼ防止される。スロット中への分離層の導入によりその強度に関してスロット中 の他の領域より劣る領域が生じるが、しかし推定上のこの弱点は特に考慮するＪ 必要はなく従ってこの発明の対象ではない。なぜならばスロット中に巻線バーを 固定するためのすべての公知の手段が利用できるからである。装置の長い寿命の ために必要な優れた機械的特性は当業者によ（知られた手段により達成すること ができる。This area is a separated layer of hardened filler in the slot of the support that houses the winding bar. given by the area in contact with. The filler has no or only slight adhesion to the separating layer. This allows gaps to be created at each point of contact without causing damage to the material. filler and A contact area with the separation layer exists between two semiconducting layers that are electrically interconnected Therefore, the contact area is an area where a nearly constant potential exists. Therefore, the glow discharge As a result, the insulating quality of the filler is reduced by cracking in the contact area. It is prevented from collapsing. The introduction of a separation layer into the slot improves its strength. However, this putative weakness should be especially taken into account by J This is not necessary and is therefore not the subject of this invention. This is because the winding bar is inserted into the slot. All known means for fixing are available. long lifespan of equipment The excellent mechanical properties necessary for Can be done.
分離層の主な構成部分は充填剤に濡れない分離剤である。この種の分離剤として は充填剤として合成樹脂が用いられる場合に、例えば油状又はグリース状の物質 、ポリテトラフルオロエチレン、シリコーンコンパウンドなどが考えられる。The main component of the separation layer is a separation agent that does not wet the filler. As this kind of separation agent When synthetic resins are used as fillers, e.g. oily or grease-like substances Possible materials include , polytetrafluoroethylene, and silicone compounds.
この種の分離剤を適当な支持体上に塗布する、例えば布に分離剤を含浸するか又 はフィルムに構成部分として分離剤を添加するのが有利である。更に場合によっ ては適当な添加物により半導電性にしたポリテトラフルオロエチレンなどのよう な濡れない物質から成るフィルムを使用することもできる。This type of separating agent is applied to a suitable support, for example by impregnating a cloth with the separating agent or Advantageously, the separating agent is added as a component to the film. Furthermore, depending on the case For example, polytetrafluoroethylene made semiconductive with appropriate additives. It is also possible to use films made of non-wettable materials.
この発明の有利な構成では、特に試験済みの工程においてこの発明に基づ（装置 の製造を可能にするために、巻線バーの第１の半導体層が、半導電性布特に導電 性顔料を添加したプラスチックから成る織物又は不織布から成り絶縁層上に巻き 付けられたテープにより形成される。従って半導体層の材料は一般に絶縁材料を 含むテープを用いた巻き付は層により生じる絶縁層の材料に似ており、半導体層 の材料の加工は絶縁層の被覆と同じ方法で行うことができる。それにより合理的 な加工が可能である。少な（とも一つの第２の半導体層を半導電性布又はフィル ムから成り巻線バー上に巻かれたテープとして構成することも同一の目的に役立 つ。In an advantageous embodiment of the invention, an apparatus according to the invention is provided in a particularly tested process. In order to enable the production of It consists of a woven or non-woven fabric made of plastic with added pigments and is wrapped on an insulating layer. formed by the attached tape. Therefore, the material of the semiconductor layer is generally an insulating material. Wrapping with tape containing layers is similar to the material of the insulating layer caused by the layer and the material of the semiconductor layer The processing of the material can be carried out in the same way as the coating of the insulating layer. That makes it more reasonable processing is possible. One second semiconductor layer is coated with a semiconductive cloth or film. It also serves the same purpose. Two.
この発明の有利な構成では、含浸の際に充填剤に基づく第１の半導体層と少なく とも一つの第２の半導体層との付着が分離層のために完全には妨げられず、でき る限り広い面積に分散して半導体層の間に接触個所が残っている。これらの接触 個所では半導体層は相互に電気的に接続することができ、接触を確保する装置は そのほかに必要でない。また分離層を貫く第１の半導体層と少なくとも一つの第 ２の半導体層との電気的接続は、分離層と充填剤との接触域での最善の電位均一 化を保証する。なぜならば層の電気的接続を最適に短く保つことができ、比較的 大きいループを介する必要がないからである。In an advantageous embodiment of the invention, during the impregnation the first semiconductor layer based on filler and at least The adhesion with one of the second semiconductor layers is not completely hindered by the separation layer and is not possible. Contact points remain between the semiconductor layers, distributed over as wide an area as possible. these contacts In places, the semiconductor layers can be electrically connected to each other, and the devices that ensure the contact are Nothing else is necessary. Further, a first semiconductor layer penetrating the separation layer and at least one first semiconductor layer are provided. The electrical connection with the semiconductor layer 2 is achieved by achieving the best potential uniformity in the contact area between the separation layer and the filler. ensure that Because the electrical connections of the layers can be kept optimally short and relatively This is because there is no need to go through a large loop.
半導体層相互の完全には中断されない付着は、分離層と充填剤との接触域の強度 が成る程度残ることも保証する。この強度は装置の安定性を全体として補助し、 特に運転時に非常に高い負荷を受ける装置の場合には望ましい。The completely uninterrupted adhesion of the semiconductor layers to each other is determined by the strength of the contact zone between the separating layer and the filler. We also guarantee that it will remain as long as possible. This strength aids in the overall stability of the device and This is particularly desirable in the case of equipment that is subject to very high loads during operation.
場合によってはそれ自体半導電性である分離層を用いることもできる。半導電性 分離層として特に半導電性顔料を含む分離剤を用いるか、又は分離剤を含浸した 半導電性布又は半導電性フィルムを用いることができる。Optionally, it is also possible to use separating layers that are themselves semiconducting. semiconducting A separating agent containing a semiconductive pigment is used as a separating layer, or a separating agent is impregnated with a separating agent. A semi-conductive cloth or a semi-conductive film can be used.
この発明の別の有利な構成は、分離層を半導体層のうちの一つの材料と統合する 、特に分離層を半導体層の被膜として分離剤により構成することにある。こうし て導体巻線装置への分離層の導入が相応の半導体層と同時に行われ、導体巻線装 置の製造過程が実質的に簡単化される。この発明の有利な実施態様では各巻線バ ーが第１の半導体層上に被覆されたテープの形の分離層を有し、その際テープが 充填剤に濡れない分離剤を含む。分離層を形成するテープを第１の半導体層上に 巻き付けるのが特に有利である。それにより巻線バーへの分離層の導入は通常の 方法の枠内で可能である。Another advantageous embodiment of the invention integrates the separation layer with the material of one of the semiconductor layers. In particular, the separation layer is formed of a separation agent as a coating on the semiconductor layer. instructor The introduction of a separation layer into the conductor winding device is carried out at the same time as the corresponding semiconductor layer, and the conductor winding device The manufacturing process of the device is substantially simplified. In an advantageous embodiment of the invention, each winding bar has a separation layer in the form of a tape coated on the first semiconductor layer, the tape being Contains a separating agent that does not wet the filler. A tape forming a separation layer is placed on the first semiconductor layer. Wrapping is particularly advantageous. Thereby the introduction of a separation layer into the winding bar is It is possible within the framework of the method.
第１の半導体層と少なくとも一つの第２の半導体層との特別に良好な電気的接続 は、導電性棒の形の少なくとも一つの接触導体の組み込みにより達成され、この 接触導体は第１の半導体層とばかりでな（少なくとも一つの第２の半導体層とも 電気的に接続するように、分離層と共に第１の半導体層上に取り付けられる。A particularly good electrical connection between the first semiconductor layer and at least one second semiconductor layer is achieved by the incorporation of at least one contact conductor in the form of a conductive rod, this The contact conductor is not only connected to the first semiconductor layer (but also to at least one second semiconductor layer). A separation layer is mounted on the first semiconductor layer for electrical connection.
その際テープが第１の半導体層の周囲への巻き付けの際に交互に接触導体の上及 び下へ導かれるように、少な（とも一つの接触導体を分離層形成テープと共に巻 線バーの第１の半導体層上に固定するのが特に有利である。この構成によっても 大きいループを回避する第１の半導体層と少なくとも一つの第２の半導体層との 電気的接続が可能となる。それにより各半導体層間の分離層と充填剤との接触域 での電位の不変性が特に保証され、この発明の目的に特に叶う装置が得られる。In this case, the tape alternately wraps around the contact conductor as it wraps around the first semiconductor layer. Wrap at least one contact conductor with separating layer-forming tape so that it is guided downward. It is particularly advantageous to fix the line bar on the first semiconductor layer. Even with this configuration A combination of a first semiconductor layer and at least one second semiconductor layer that avoids large loops. Electrical connection is possible. Thereby the contact area between the separation layer and the filler between each semiconductor layer The constancy of the potential at is particularly guaranteed, resulting in a device which particularly meets the objectives of the invention.
この発明の別の有利な構成によれば、少なくとも一つの第２の半導体層が、半導 電性材料から成り少な（とも一つのスロット壁を覆う内張りにより与えられる。According to another advantageous embodiment of the invention, the at least one second semiconductor layer is a semiconductor layer. Provided by a lining made of electrically conductive material (both covering one slot wall).
この構成の枠内では各巻線バーに固有の第２の半導体層を設けることは必要でな い。巻線バー当たりの明らかに少ない所要空間が結果として得られるので。Within the framework of this configuration, it is not necessary to provide each winding bar with its own second semiconductor layer. stomach. As clearly less space required per winding bar results.
導体巻線装置を所定の負荷容量に対して特にコンパクトに構成するか、又は別の 観点から例えば大形回転電機の巻線装置に与えられた機能に関して最適化するこ とが可能である。スロットの内張りに対しては既に述べた半導電性布が好適であ る。このような構成の有利な実施態様ではスロット内張りは、例えば被膜の形で 又は既に述べたスロット内張り上に半導電性布をかぶせた別の内張りの形で分離 層を設けることができる。その際すべてのスロット壁のスロット内張りに分離層 を設けることは必ずしも必要でない。この発明に基づく長所はスロット内張りが 分離層を備えた唯一のスロット壁に設けられるときに既に発揮される。それによ り導体巻線装置と分離層を有しないスロット壁との強固な付着が、装置の強度向 上のために補助的に寄与する。The conductor winding arrangement must be constructed particularly compactly for a given load capacity, or alternatively From this point of view, for example, it is possible to optimize the functions given to the winding device of a large rotating electric machine. is possible. The semiconductive cloth mentioned above is suitable for lining the slot. Ru. In an advantageous embodiment of such an arrangement, the slot lining is, for example, in the form of a coating. or separate in the form of a separate lining with a semi-conductive cloth over the slot lining already mentioned. layers can be provided. A separating layer is added to the slot lining on all slot walls. It is not necessarily necessary to provide. The advantage of this invention is that the slot lining It is already exhibited when only one slot wall with a separating layer is provided. That's it The strong adhesion between the conductor winding device and the slot wall without separation layer increases the strength of the device. contribute auxiliary to the above.
この発明は、充填剤特に硬化される合成樹脂を含浸された大形回転電機のための 導体巻線装置を、部分的に支持体のスロット中に挿入された巻線バーから成る導 体巻線を備えた支持体の形で提供し、その際支持体の各スロットが電気的に遮蔽 された少なくとも一つの領域を有し、この領域の強度はスロット中の他の領域に 比べて減少している。例えば熱的膨張及び収縮過程により起こる充填剤の亀裂は 強度の小さい前記領域中に生じやすい。この領域ではほとんど電位勾配が生じな いので、亀裂中の火花発生が実際上防止され、装置の電気的品質の低下が防止さ れる。更に亀裂形成の起こりやすい領域が良好に限定されるので、亀裂形成にも かかわらず装置の機械的強度の低下を強度を高める手段の適当な利用により回避 することができる。This invention is for large rotating electric machines impregnated with fillers, especially hardened synthetic resins. The conductor winding device consists of a conductor winding bar partially inserted into a slot in the support. provided in the form of a support with body windings, each slot of the support being electrically shielded. the strength of this region is greater than that of other regions in the slot. It has decreased compared to For example, cracks in the filler caused by thermal expansion and contraction processes It tends to occur in the region where the intensity is low. Almost no potential gradient occurs in this region. This effectively prevents sparks from forming in cracks and prevents deterioration of the electrical quality of the device. It will be done. Furthermore, since the areas where crack formation is likely to occur are well defined, crack formation is also prevented. However, the decrease in mechanical strength of the device can be avoided by appropriate use of means to increase the strength. can do.
この発明は、充填剤特に硬化性の合成樹脂による含浸後に大形回転電機の部分と して特に固定子又は回転子として特に適している導体巻線装置を提供する。なぜ ならばこの導体巻線装置は所定の負荷容量に対し特にコンパクトな形を得ると共 に優れた電気的特性を備える特別な堅固さを有するからである。This invention allows parts of large rotating electric machines to be A conductor winding device is provided which is particularly suitable as a stator or a rotor. why This conductor winding arrangement then obtains a particularly compact form for a given load capacity. This is because it has special robustness with excellent electrical properties.
この発明の詳細な説明を以下図面に示した実施例により行う。A detailed explanation of the present invention will be given below with reference to embodiments shown in the drawings.
第１図は、含浸のために準備されたこの発明に基づ（導体巻線装置の部分図を示 す。FIG. 1 shows a partial view of a conductor winding device according to the invention prepared for impregnation. vinegar.
第２図は、この発明に基づ（装置への組み込みのために特に適した巻線ｉ＜−の 一実施例を示す。FIG. 2 shows a winding i An example is shown.
第３図は、特別に有利に構成されたこの発明に基づく装置の部分図を示す。FIG. 3 shows a partial view of a particularly advantageously constructed device according to the invention.
第１図に示すように、支持体１は巻線バー３を収容するために用いられるスロッ ト２を備え、巻線バー３の挿入後に当業者に種々の構成で知られているこの発明 の対象ではない適当なスロット閉鎖装置４により閉鎖される。その際支持体１は 例えば回転子のように一体の又は二、三の要素だけから組み立てられたブロック から成るか、又は例えば固定子に対してよく用いられるように多数の個々の板５ から組み立てることができる。その際両者の混合形式も自明のように当業者によ り実施可能である。As shown in Figure 1, the support 1 has slots used to accommodate the winding bar 3. This invention is known to those skilled in the art in various configurations after insertion of the winding bar 3. It is closed by a suitable slot closing device 4 which is not subject to. At that time, the support 1 A block assembled from one piece or only a few elements, such as a rotor or a number of individual plates 5, as is often used for example for stators. It can be assembled from. In this case, it will be obvious to those skilled in the art that a mixed form of the two may also be used. This is possible.
巻線バー３は主構成部分として絶縁層７により囲まれた導体装置６を備える。The winding bar 3 has as its main component a conductor arrangement 6 surrounded by an insulating layer 7 .
導体装置６は少なくとも一つの導電性棒特に銅棒から成り、所定の運転負荷に応 じて冷却媒体などを案内する流路を有することができる。絶縁層７は一般にテー プの巻き付は層から成り、テープは例えば雲母のような絶縁材料を備え、例えば 合成樹脂のような充填剤を含浸可能である。充填剤含浸の完了後に絶縁層７はほ ぼ緻密で均一な固体となり、この固体内部にはテープの繊維組織が絶縁材料と共 に入っている。The conductor arrangement 6 consists of at least one electrically conductive bar, in particular a copper bar, which is adapted to the given operating load. It is also possible to have a flow path for guiding a cooling medium or the like. The insulating layer 7 is generally a tape. The wrapping of the tape consists of layers, the tape comprises an insulating material, e.g. mica, e.g. It can be impregnated with fillers such as synthetic resins. After completion of filler impregnation, the insulation layer 7 is It becomes a dense and uniform solid, and inside this solid, the fiber structure of the tape is combined with the insulating material. It's in.
この発明によれば巻線バー３の絶縁層７は第１の半導体層８により囲まれ、この 半導体層８上には少なくとも巻線バー３のスロット壁１１に向かう側面に、装置 に含浸しようとする充填剤に全く又はほとんど濡れない材料から成る分離層９が 張り付けられている。分離層９は分離層９及び第１の半導体層８上にかぶせられ た第２の半導体層１０により巻線バー３上に固定されている。According to the invention, the insulating layer 7 of the winding bar 3 is surrounded by the first semiconductor layer 8; On the semiconductor layer 8, at least on the side of the winding bar 3 facing the slot wall 11, there is provided a device. A separation layer 9 made of a material that does not or hardly wets the filler to be impregnated into the It is attached. The separation layer 9 is placed over the separation layer 9 and the first semiconductor layer 8. It is fixed onto the winding bar 3 by a second semiconductor layer 10 .
支持体１、巻線バー３及びスロット閉鎖装置４から成る巻線装置が完全に組み立 てられると、巻線装置は硬化可能な合成樹脂又は類似の充填剤により全体として 含浸され、充填剤が硬化される。硬化のために本来の充填剤には多くの場合相応 の化学薬品が添加混合され、硬化過程の誘起のために通常の合成樹脂の場合には 約１５０″Ｃの範囲の所定の温度に充填剤を加熱することが必要である。硬化が 行われた後に装置は再び冷却される。その際熱的収縮過程に基づき装置内部に特 にスロット２内部に、場合によっては亀裂形成を招くおそれのある引張応力が生 じる。The winding device consisting of the support 1, the winding bar 3 and the slot closing device 4 is fully assembled. The winding device is then entirely covered with a curable synthetic resin or similar filler. impregnated and the filler is cured. Often suitable for the original filler for curing In the case of ordinary synthetic resins, chemicals are added and mixed to induce the curing process. It is necessary to heat the filler to a predetermined temperature in the range of about 150"C. After this is done, the device is cooled down again. At that time, due to the thermal shrinkage process, special tensile stress is generated inside the slot 2 which may lead to crack formation. Jiru.
この発明の重要な要素は、支持体ｌの各スロット２の中で発生する亀裂を所定の 領域に集中させ、更にこの領域ではグロー放電を誘発する過度の電界強度が発生 するおそれがないように配慮することである。この領域は硬化した充填剤が分離 層９と接触するスロット２中の領域により形成される。充填剤は分離層９と全（ 又は少ししか付着しないので、材料の損傷を招くことなく各接触個所に間隙が生 じ得る。分離層９は第１の半導体層８又は第２の半導体層１０から成り相互に結 合された導電性の二つの層の間に囲まれているので、分離層９従って充填剤と分 離層９との間の接触域は電位の無い領域中に存在する。電界従ってグローｌ！ｊ 、ｉｉｉがこの領域中で発生するおそれがないので、優れた電気的品質が保証さ れる。スロット２中への分離層９の導入によりその強度に関してスロット２中の 他の領域より劣る個所が生じるが、しかし推定上のこの弱点を考慮することは必 要でない。充填剤の含浸を受けない支持体１のスロット２中で巻線バー３を固定 するために用いることができるすべての手段が利用される。特に長い寿命をもた らす優れた機械的特性が保証される。An important element of the invention is that the cracks occurring in each slot 2 of the support l are This area generates excessive electric field strength that induces a glow discharge. care must be taken to ensure that there is no risk of this happening. This area is where the hardened filler separates. It is formed by the area in the slot 2 that is in contact with the layer 9. The filler is separated into the separation layer 9 and the total ( Or, it adheres so little that it creates gaps at each point of contact without causing damage to the material. It can be done. The separation layer 9 consists of the first semiconductor layer 8 or the second semiconductor layer 10 and is interconnected. Since the separation layer 9 is enclosed between the two combined conductive layers, the filler and the separation layer 9 The contact area with the delamination 9 is in a potential-free area. The electric field therefore glows! j , iii can occur in this area, ensuring excellent electrical quality. It will be done. The introduction of the separating layer 9 into the slot 2 improves the strength of the slot 2 with respect to its strength. Some areas will be weaker than others, but it is necessary to take this putative weakness into account. Not necessary. Fixing the winding bar 3 in the slot 2 of the support 1 which is not subject to impregnation with filler All available means will be used to do so. has a particularly long lifespan Excellent mechanical properties are guaranteed.
第２図は、この発明で用いることができるような巻線バー３の特別な構造を示す 、この実施例の特徴は、巻線バー３の絶縁層７上の第１の半導体層８の周囲に巻 き付けられた分離層９がテープの形をとることである。FIG. 2 shows a special construction of the winding bar 3 as can be used in the invention. The feature of this embodiment is that the wire is wound around the first semiconductor layer 8 on the insulating layer 7 of the winding bar 3. The applied separation layer 9 is in the form of a tape.
第１の半導体層８と第２の半導体層１０との間の導電接続は、第１図に示す実施 例では第１の半導体層８と第２の半導体層１０とが相互に部分的に接触すること により保証されたが、第２図に示す巻線バー３の場合にはこれは導電性材料特に 銅から成る補助の接触導体１３によりもたらされ、接触導体１３は分離層９上に 巻き付けられた第１の半導体層８及び第２の半導体層１０に交互に接触するよう に、分離層９と共に第１の半導体層８上に設けられている。それによりこの種の 巻線バー３はその全周において、熱応力から生じる亀裂がグロー放電などに対し て守られた領域に集中することを保証する。The electrically conductive connection between the first semiconductor layer 8 and the second semiconductor layer 10 is made using the implementation shown in FIG. In the example, the first semiconductor layer 8 and the second semiconductor layer 10 are in partial contact with each other. However, in the case of the wire-wound bar 3 shown in FIG. This is provided by an auxiliary contact conductor 13 made of copper, which contact conductor 13 is placed on the separating layer 9. so as to alternately contact the wound first semiconductor layer 8 and second semiconductor layer 10. It is provided on the first semiconductor layer 8 together with the separation layer 9 . This kind of The wire-wound bar 3 has cracks caused by thermal stress on its entire circumference due to glow discharge, etc. ensure that they are focused on protected areas.
第３図は、この発明に基づく導体巻線装置の有利な構成を示す。巻線バー３は第 １の半導体層８だけを有し、巻線バー３の外側領域中に組み込まれる分離層９の 代わりに、スロット壁１１が分離層９のように充填剤に濡れないスロット内張り １４を有し、それにより亀裂の形成を制限するための領域がスロット壁１１の周 囲の領域へ移される。スロット内張り１４の領域での電位均一化は、巻線バー３ の第１の半導体層８が支持体ｌと導電接続されることによりもたらされる。この ことはスロット底１２がスロット内張りＩ４を有せず、それにより第１の半導体 層８がスロット底１２を介して支持体ｌと電気的に接続することにより行われる のが合目的的である。スロット底１２に対してスロット内張り１４を省略できな い場合には、例えばスロット底１２のために第２図に示したのと同様に電気的接 続を保証する接触導体１３により貫かれたスロット内張り１４を使用することが 考えられる。FIG. 3 shows an advantageous configuration of the conductor winding arrangement according to the invention. The winding bar 3 is of a separating layer 9 which has only one semiconductor layer 8 and is incorporated in the outer region of the winding bar 3. Instead, the slot wall 11 is a slot lining that does not wet the filler like the separation layer 9. 14, whereby an area for limiting crack formation is provided around the slot wall 11. be moved to the enclosed area. The potential equalization in the area of the slot lining 14 is achieved by the winding bar 3 This is brought about by the first semiconductor layer 8 of being electrically connected to the carrier l. this This means that the slot bottom 12 does not have a slot lining I4, so that the first semiconductor This is done by electrically connecting the layer 8 to the support l via the slot bottom 12. is purposeful. The slot lining 14 cannot be omitted for the slot bottom 12. For example, if the slot bottom 12 is the same as shown in FIG. It is possible to use a slot lining 14 pierced by a contact conductor 13 which ensures the connection. Conceivable.
各実施例では二つの巻線バー３を備えるスロット２だけを紹介した。自明のよう にこの発明は二つの巻線バー３を備える装置ばかりでなく、周知の方法で説明の ためにだけ用いられた図示の実施例から考えられるすべての装置を含む。In each embodiment only a slot 2 with two winding bars 3 was introduced. self-evident The invention not only provides a device with two winding bars 3, but also a device that can be used in a well-known manner. It includes all conceivable devices from the illustrated embodiments which are used only for this purpose.
この発明は、電気的損失の最小化及び寿命の向上を考膚して特別の方法で全含浸 の長所の利用を可能にするような、大形回転電機のための導体巻線装置を提供す る。This invention uses a special method to completely impregnate the We provide a conductor winding device for large rotating electric machines that makes it possible to take advantage of the advantages of Ru.
国際調査報告 ｏｌ、ｒｌｒ＋ｖ ＱＱｌｏｎＡ＜Ｇ□□ｋＰＣＴ／ＤＥ ８９ １００４５６International search report ol, rlr+v QQlonA<G□□kPCT/DE 89 100456
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE1989/000456 WO1991001059A1 (en) | 1989-07-10 | 1989-07-10 | Conductor-winding assembly for a large electrical machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04502546A true JPH04502546A (en) | 1992-05-07 |
| JPH0744798B2 JPH0744798B2 (en) | 1995-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1507455A Expired - Lifetime JPH0744798B2 (en) | 1989-07-10 | 1989-07-10 | Conductor winding device for large rotating electric machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5030870A (en) |
| EP (1) | EP0481984B1 (en) |
| JP (1) | JPH0744798B2 (en) |
| WO (1) | WO1991001059A1 (en) |
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| JP4913551B2 (en) * | 2006-11-07 | 2012-04-11 | 株式会社日立製作所 | Rotating electrical machine winding, rotating electrical machine, and semiconductive insulating substrate used therefor |
| JP5260399B2 (en) * | 2009-04-24 | 2013-08-14 | 日立オートモティブシステムズ株式会社 | Rotating electric machine for driving vehicle and vehicle using the same |
| EP2348615A1 (en) * | 2010-01-22 | 2011-07-27 | Alstom Technology Ltd | Conductive bar for electric machines |
| US9627937B2 (en) * | 2013-12-02 | 2017-04-18 | GM Global Technology Operations LLC | Stator for an electric motor |
| KR20160116568A (en) * | 2015-03-30 | 2016-10-10 | 현대자동차주식회사 | Motor unit hving insulation member |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2705292A (en) * | 1953-05-07 | 1955-03-29 | Siemens Ag | Slot conductor for dynamoelectric machines |
| CH466415A (en) * | 1967-12-05 | 1968-12-15 | Bbc Brown Boveri & Cie | Device to prevent glow discharges between two insulated conductors of different potential, especially in rotating machines |
| CH546501A (en) * | 1972-06-20 | 1974-02-28 | Bbc Brown Boveri & Cie | METHOD OF MANUFACTURING BARRIERS FOR THE STATOR WINDING OF A ROTATING ELECTRIC HIGH VOLTAGE MACHINE. |
| JPS50151304A (en) * | 1974-05-29 | 1975-12-05 | ||
| JPS51123046A (en) * | 1975-04-18 | 1976-10-27 | Matsushita Electric Ind Co Ltd | Mono-stable multi-vibrator |
| US4091139A (en) * | 1975-09-17 | 1978-05-23 | Westinghouse Electric Corp. | Semiconductor binding tape and an electrical member wrapped therewith |
| JPS52138601A (en) * | 1976-05-14 | 1977-11-18 | Mitsubishi Electric Corp | Holder for machine winding |
| JPS5583434A (en) * | 1978-12-14 | 1980-06-23 | Meidensha Electric Mfg Co Ltd | High voltage coil of rotating electric machine |
| JPS55106046A (en) * | 1979-02-05 | 1980-08-14 | Hitachi Ltd | Prevention of corona within slot on stator coil |
| DE3016990A1 (en) * | 1980-05-02 | 1981-11-12 | Kraftwerk Union AG, 4330 Mülheim | DEVICE FOR FIXING WINDING RODS IN SLOTS OF ELECTRICAL MACHINES, IN PARTICULAR TURBOGENERATORS |
| DE3031866A1 (en) * | 1980-08-23 | 1982-04-01 | Brown, Boveri & Cie Ag, 6800 Mannheim | LADDER BAR FOR ELECTRICAL MACHINE |
| DE3102849A1 (en) * | 1981-01-29 | 1982-08-26 | Kraftwerk Union AG, 4330 Mülheim | Arrangement for internal potential control in the case of twisted generator bars |
| JPS5899238A (en) * | 1981-12-09 | 1983-06-13 | Hitachi Ltd | Coil for electric machinery |
-
1989
- 1989-07-10 WO PCT/DE1989/000456 patent/WO1991001059A1/en active IP Right Grant
- 1989-07-10 EP EP89907671A patent/EP0481984B1/en not_active Expired - Lifetime
- 1989-07-10 JP JP1507455A patent/JPH0744798B2/en not_active Expired - Lifetime
-
1990
- 1990-07-10 US US07/550,684 patent/US5030870A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019520029A (en) * | 2016-04-25 | 2019-07-11 | シーメンス アクティエンゲゼルシャフト | Electric machine and method for disassembling and manufacturing electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0481984A1 (en) | 1992-04-29 |
| EP0481984B1 (en) | 1994-01-19 |
| JPH0744798B2 (en) | 1995-05-15 |
| US5030870A (en) | 1991-07-09 |
| WO1991001059A1 (en) | 1991-01-24 |
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